What was found
APU AUTO SHUTDOWN ON PUSHBACK. REPLACED APU SURGE CONTROL VALVE PER MM. DRY MOTORED NR 1 ENGINE PER JRH, FOUND NO DEFECTS, APU MAINTAINED PNEUMATIC LOAD WITH NO AUTO SHUTDOWN.
- Difficulty date
- July 17, 2011
- Submitted
- July 28, 2011
- Operation
- Air carrier
- Aircraft
- N673UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29241
- Aircraft time
- 41,644 hours, 10,935 cycles
- Engine
- Pwa PW4052
- System (JASC)
- 4920 · APU Core Engine
- Part
- Control Valve
- Part number
- 97980612
- Part serial
- 209
- Condition
- Faulty
- Location
- Apu Engine
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.